Plains Yellow Primrose
Oenothera serrulata
Last reviewed: August 2026
Oenothera serrulata is a low-growing forb with bright yellow flowers that open from May through August, thriving in full sun and dry, well-drained soils typical of prairies and rocky plains.
Toxicity unknown
Plains Yellow Primrose (Oenothera serrulata) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
low
Size
4"–16" H × 4"–12" W
Bloom
May, Jun, Jul, Aug
Native to
AR, AZ, CO, IA and 16 more states
Pollinators
moths, bees
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
Yellow Evening Primrose is a low-growing perennial wildflower that produces bright yellow, four-petaled blooms throughout the summer months. This drought-tolerant native forms compact clumps and thrives in full sun with minimal water once established.
Growing Plains Yellow Primrose
Grow Plains Yellow Primrose in full sun and low water. Mature plants reach 4 to 16 inches tall and spread 4 to 12 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Plains Yellow Primrose takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Has wild, weedy appearance that most HOAs reject
- Very informal growth habit unsuitable for maintained landscapes
- Evening blooming pattern means flowers often closed during day
Wildlife value
The flowers attract night-flying moths and various bee species. Blooms open in the evening, making this plant particularly valuable for nighttime pollinators.
Common questions
- When does Plains Yellow Primrose bloom?
- Oenothera serrulata typically flowers from May through August, with cup-shaped yellow blooms that often open in late afternoon or evening.
- What pollinators does Oenothera serrulata attract?
- Bees visit during the day and moths are drawn to the flowers as they open toward evening, making this plant useful for supporting both groups.
- What growing conditions suit this plant best?
- It grows best in full sun with low water needs, tolerating dry, sandy or rocky, well-drained soils similar to those found on open plains and prairie slopes.
- Is Oenothera serrulata a good choice for a dry garden bed?
- Yes, its low water requirement and preference for full sun make it well suited to xeriscapes, prairie gardens, and other low-maintenance dry plantings.
- Is Plains Yellow Primrose HOA-friendly?
- Plains Yellow Primrose takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Plains Yellow Primrose? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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